"System running low on direct mapped memory " Error on Console

[ranjith.kanisan]

Hi,

Our ACE Primary device got hang its not responded to management or console access. After rebooting the device everything is came to normal, but we are getting the following error from console.

901001 <2>Dec 11 15:42:20 kernel: System running low on direct mapped memory    
901001 <2>Dec 11 15:42:20 kernel: Please issue 'show processes memory' and 'show system kmem' to diagnose further
901001 <2>Dec 11 15:42:21 kernel: Available CP memory reached below 5 percent threshold, TotalMemFree: 312201216 bytes, High MemFree: 305004544 bytes

Kindly suggest why this error message is generatting and it will effect the box performance.

SoftWare version : A4(2.0)

[Kanwaljeet Singh]

Hi Ranjith,

It could be due  to a known DDTS. Which model of ACE are you running?

Please have look at :

CSCtr62421: ACE30 low memory crash: CP free memory below 1 percent threshold

Regards,
Kanwal

[ranjith.kanisan]

Hi Kanwal,

Thank you for your reply.

We are using ACE 4710 Hardware and software version A4(2.0).

Regards,

Ranjith

[Kanwaljeet Singh · Accepted solution]

Hi Ranjith,

It does seem to be  the DDTS you are hitting. Please discuss with your account team and upgrade for the fix.

You may also be interested in related DDTS: Both of the below DDTS are related.  Reload of the device fixes the issue but only for a while. You may have to reload when you see this message again and available memory is below 15%.

CSCtx41399

CSCtz29117

Regards,

Kanwal